DOD assigns US Strategic Command (STRATCOM) responsibility for four new missions: global strike; integrated missile defense; integrated information operations; and global command, control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR). The new incarnation of STRATCOM, headquartered at Offutt AFB, Neb., is combination of the “old” STRATCOM, whose responsibility was primarily nuclear strike, and US Space Command (SPACECOM).
The U.S. began extensive air and artillery strikes against Islamic State group targets in Syria on Dec. 19 in retaliation for the killing of three Americans on Dec. 13 by a gunman affiliated with ISIS, U.S. officials said.

